Multi-Layer Silicon Nitride Laminates Exhibiting High Fracture Toughness and Crack Deflection

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Abstract:

Si3N4-TiN based multi-layer ceramics laminates have been produced. With external compressive layers, laminates with a three-fold increase in KIc over the monolithic ceramics have been realised. When external tensile layers are used in conjunction with thin internal compressive layers, energy absorbing crack deflection and bifurcation processes are observed.

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Key Engineering Materials (Volumes 280-283)

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1863-1868

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February 2007

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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